Sumday – a daily game: make an equation from today's date
Hi all! This is a game I made where you try to make an equation from today's date, using every digit in order. I had a substitute math teacher in middle school who did this on the whiteboard one day, and I've been doing it for fun every so often since. I was inspired by wordle to make it into a daily web game, but unlike wordle and other games in that genre, you don't need to guess one specific solution. Any valid equation works. I found that mechanic more enjoyable and let me focus on just the math. Each day does have a "canonical" solution that you can gradually reveal with the Hint…
What it does
Turn today
In the maker’s words, at launch
Hi all! This is a game I made where you try to make an equation from today's date, using every digit in order. I had a substitute math teacher in middle school who did this on the whiteboard one day, and I've been doing it for fun every so often since. I was inspired by wordle to make it into a daily web game, but unlike wordle and other games in that genre, you don't need to guess one specific solution. Any valid equation works. I found that mechanic more enjoyable and let me focus on just the math. Each day does have a "canonical" solution that you can gradually reveal with the Hint button, but that doesn't need to be your equation. Let me know what you think, I hope you enjoy it!
Does the same job
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- BABuilt a daily game where you sort historical events chronologicallyApr 2026 · hisorty.app · ▲74
Hey folks, I built Hisorty, a small daily game where you sort historical events in chronological order (strongly inspired by Wordle mechanics). Each day you get 6 events and 3 attempts to place them correctly. I found it surprisingly tricky to design those puzzles so the difficulty is just about right. Would love feedback on: - difficulty balance - UI/UX - whether the concept feels engaging long-term Happy to answer any questions about how I built it.
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